Keep getting CTD's when running FS9 under Vista busness

Hello there fellow Vista users I keep getting CTD's when running FS9 under the above. I have checked under the error log but nothing usable shows up I.E. no modules or .dll's either. So my next question is there anything I should know about when installing FS9 under Vista?. I am aware of things like U.A.C.and Windows Defender causing problems so I'veturned them off before installing FS9. but I am still get CTD's when running FS9. Any pointers would be most helpful! I do know that many apps that make a lot of calls to D3d still have problems under Vista so that's why I still run XP on our machines used for business!Dan Martin.http://www.flightontario.com/images/sig_dmartin.gif